protected void BeginReceiving(Socket socket, int socketIndex)
{
// Continue the attempts to receive data so long as the connection is open.
while (this.GetIsConnected(socket))
{
try
{
// Stores our packet header length.
int pLength = PACKET_HEADER_LENGTH;
// Stores the current amount of bytes that have been read.
int curRead = 0;
// Stores the bytes that we have read from the socket.
var data = new byte[pLength];
// Attempt to read from the socket.
curRead = socket.Receive(data, 0, pLength, SocketFlags.None);
// Read any remaining bytes.
while (curRead < pLength)
curRead += socket.Receive(data, curRead, pLength - curRead, SocketFlags.None);
// Set the current read to 0.
curRead = 0;
// Get the packet length (32 bit integer).
pLength = BitConverter.ToInt32(data, 0);
// Set the data (byte-buffer) to the size of the packet -- determined by pLength.
data = new byte[pLength];
// Attempt to read from the socket.
curRead = socket.Receive(data, 0, pLength, SocketFlags.None);
// Read any remaining bytes.
while (curRead < pLength)
curRead += socket.Receive(data, curRead, pLength - curRead, SocketFlags.None);
var dataBuffer = new DataBuffer();
// Fill our DataBuffer.
dataBuffer.FillBuffer(data);
// Get the unique packetID.
int packetID = dataBuffer.ReadInteger();
// Create a new Packet instance by finding the unique packet in our registered packets by using the packetID.
var packet = (from p in _registeredPackets
where p.PacketID == packetID
select p).FirstOrDefault();
// Create a new instance of Packet based on the registered packet that matched our unique packet id.
if (packet != null)
{
var execPacket = Activator.CreateInstance(packet.GetType()) as Packet;
// Fill the packet's DataBuffer.
execPacket.DataBuffer.FillBuffer(data);
// Set the DataBuffer's offset to the value of readOffset.
execPacket.DataBuffer.SetOffset(4);
execPacket.SocketIndex = socketIndex;
// Execute the packet.
if (this.Handle_Packet != null)
this.Handle_Packet.Invoke(execPacket);
else
execPacket.Execute(this);
}
else
{
Console.WriteLine("Invalid packet with ID: " + packetID + " received.");
continue;
}
}
catch (ObjectDisposedException)
{
break;
}
catch (SocketException)
{
break;
}
}
this.HandleDisconnectedSocket(socket);
}
protected void SendPacket(Socket socket, Packet packet)
{
try
{
var dataBuffer = new DataBuffer();
dataBuffer.WriteInteger(packet.PacketID);
dataBuffer.WriteBytes(packet.DataBuffer.ReadBytes());
byte[] data = dataBuffer.ReadBytes();
byte[] packetHeader = BitConverter.GetBytes(data.Length);
int sent = socket.Send(packetHeader);
while (sent < packetHeader.Length)
sent += socket.Send(packetHeader, sent, packetHeader.Length - sent, SocketFlags.None);
sent = socket.Send(data);
while (sent < data.Length)
sent += socket.Send(data, sent, data.Length - sent, SocketFlags.None);
}
catch (NullReferenceException)
{
}
catch (SocketException)
{
}
catch (ObjectDisposedException)
{
}
}